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Explain the role of the Application Function Part (AFP) in the 5G Core network.

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  1. AMF (Access and Mobility Management Function): Responsible for managing access and mobility for user equipment (UE). It handles functions such as registration, authentication, and mobility management.
  2. SMF (Session Management Function): Responsible for session management, including the establishment, modification, and termination of data sessions. It is crucial for managing the data plane.
  3. UPF (User Plane Function): Responsible for the actual transmission and reception of user data. It plays a key role in data forwarding, packet inspection, and quality of service (QoS) enforcement.
  4. AUSF (Authentication Server Function): Manages user authentication and authorization in the 5G network.
  5. UDM (Unified Data Management): Responsible for managing subscription-related data and user data repositories.
  6. NSSF (Network Slice Selection Function): Plays a role in network slicing, allowing the creation and management of multiple virtual networks on a shared physical infrastructure.
  7. UDR (Unified Data Repository): Stores user-related data and subscription information.
  8. PCF (Policy Control Function): Manages policy enforcement and control for various services and network functions.